Quick Facts
Phenibut HCl — Quick Facts & Key Data
A concise, factual summary of Phenibut hydrochloride for research documentation. Chemistry, identifiers, and regulatory status only — no usage information.
What is Phenibut HCl?
Phenibut HCl is the hydrochloride salt of β-phenyl-γ-aminobutyric acid (4-amino-3-phenylbutanoic acid), a γ-aminobutyric acid (GABA) analogue supplied as a laboratory research material.
What is the chemical formula of Phenibut HCl?
The hydrochloride salt is C10H14ClNO2 (molecular weight 215.68 g/mol). The free base is C10H13NO2 (179.22 g/mol).
What is the CAS number of Phenibut?
The free base is CAS 1078-21-3; the hydrochloride salt is CAS 3060-41-1. Its PubChem CID is 14113.
What is Phenibut’s IUPAC name?
4-amino-3-phenylbutanoic acid (hydrochloride: 4-amino-3-phenylbutanoic acid hydrochloride).
What form does Phenibut HCl take?
A white to off-white crystalline powder; the hydrochloride salt is water-soluble.
How is Phenibut related to GABA?
It is GABA bearing a phenyl group at the β (3-) position of the carbon chain; it is structurally close to baclofen (which has a 4-chlorophenyl group).
Is Phenibut legal in the United States?
As of this writing it is not a federally scheduled controlled substance and is not an FDA-approved drug; the FDA has stated it does not qualify as a dietary supplement. Status varies by U.S. state and by country and can change; purchasers must verify current law. See legal & regulatory status.
What documentation may be available?
Where available for a lot, a Certificate of Analysis and Safety Data Sheet; availability is identified with the applicable product.
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